-- @testpoint: opengauss关键字If(非保留)，作为函数名，部分测试点合理报错

--关键字不带引号-成功
drop function if exists If;
create function If(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists If;

--关键字带双引号-成功
drop function if exists "If";
create function "If"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
drop function if exists "If";

--关键字带单引号-合理报错
drop function if exists 'If';
create function 'If'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/

--关键字带反引号-合理报错
drop function if exists `If`;
create function `If`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/